Griffin is divorced, living in a flat in Manhattan while his sons and ex live in the family home in Westchester. He gets bad news from his oncologist: cancerous lesions have spread through his chest, and he has only a year or so to live. He audits a psychology class on death and dying at a nearby college where he chats up a woman who turns out to be an assistant dean. She's Phoenix; she smiles but keeps her distance, warming to him slowly. He tells her nothing of his situation. At his apartment a few days later, she finds a stash of books on death, dying, and terminal illness: will she put two and two together, and what will she do about it?

As she searches for allies and answers in the wake of the uprising, Tris and Four are on the run. Being hunted by Jeanine Matthews, the leader of the Erudite faction, Tris and Four will race against time as they try to figure out what Abnegation sacrificed their lives to protect, and why the Erudite leaders will do anything to stop them. Haunted by her past choices but desperate to protect the ones she loves, Tris faces one impossible challenge after another as she unlocks the truth about the past and ultimately the future of her world.